About Price to Earnings Ratio. The price to earnings ratio (PE Ratio) is the measure of the share price relative to the annual net income earned by the firm per share. PE ratio shows current investor demand for a company share. A high PE ratio generally indicates increased demand because investors anticipate earnings growth in the future.
Hair Coloring in the Twentieth Century and Beyond. Two of todayâs most well-known hair dye products got their start in the early twentieth century. In 1907, French chemist Eugene Schueller developed the first safe commercial hair dye, a synthetic formalation based on the chemical paraphenylenediamine.
Henna was known in many parts of the world; it produces a reddish dye. Many different plant extracts were used for hair dye in Europe and Asia before the advent of modern dyes. Indigo, known primarily as a fabric dye, could be combined with henna to make light brown to black shades of hair dye. An extract of the flowers of the chamomile plant was long used to lighten hair, and this is still used in many modern hair preparations.